ACU-RITE VRO 300T - Manual (Page 36)

VRO 300T Remote Interface
29
Remote Interface
You can enter commands into the
VRO 300T
from a remote terminal or
computer if you have configured the serial port as a
COMPUTER
. These remote
commands are in the form of ANSI standard ASCII characters. The remote
device can request that the readout send information, such as the current
position, or the device can control the readout by simulating the pressing of
any of the readout’s hard keys or softkeys.
Requesting Information
Commands that request information from the readout begin with the
question mark character. As soon as the command is recognized, the
response data is sent, terminated by a CR character. Invalid commands are
ignored.
String Command Response
?* Reset No information returned. Resets the echo flag and input and
output buffers.
?En Set Echo Mode: echo
when a keypad
command is sent.
n is equal to 0, 1, or 2. If n = 0, no echo. If n = 1, echo the
control character sent. If n = 2, echo a string describing the
key function. Refer to the “Readout Keypress” column in the
Keypad Command table on page 30 for the strings.
?Ix
?Ax
Get Incremental
Position
Get Absolute Position
Returns the position for the axis specified. x = 1, 2, 3, 4, 5 or
6. Examples are:
“X= -123.4567 INCH”, “Z1= +123.4567 INCH”
For an undefined axis, the response is “* = ****.**** ***”. If an
error exists, the response is: “x = Error mm”.
?U Get Units Returns the current display units, “INCH” or “MM”.
?X Get Active Axes Returns the displayable axes. Response is “X Z1 Z2 Y ** **”.
“**” means axes are not displayed.
?T Get Current Tool Returns the number for the current tool (0-99).
?Q Get Port Status Verifies the operation of the port connected to the computer.
The responses are:
0 = No parity, data overrun, or buffer overflow errors have
occurred since the last “port status” check.
1 = One of the above errors has occurred since the last “port
status” check.